As it says im wanting to put a 1JZ into my altezza just wondering if anyone has any advice for me or anything they can tell me about what needs to be done for these conversion, also if anyone has any parts that would be much appericated aswell

Get a front clip from a soarer or an aristo with vvti. Mounts you should get from a usa spec is300 that way it sits perfect. Find yourself somebody good at wiring and have them make a patch harness. Custom drive shaft wil be needed as well as a differential from a soarer. Its pretty straight forward. The front clip will save you money in the end but cost tou more up front